A point is a location in two-dimensional Euclidean geometry, represented by a pair of numbers.
procedure(point? v) → boolean? v : any/c
procedure(point? v) → boolean?
procedure
(point? v) → boolean?
procedure(point x y) → point? x : real? y : real?
procedure(point x y) → point?
(point x y) → point?
procedure(point-x pt) → real? pt : point?procedure(point-y pt) → real? pt : point?
procedure(point-x pt) → real?
(point-x pt) → real?
procedure(point-y pt) → real?
(point-y pt) → real?